Catlin, George.- Vida entre los Indios,Olañeta,
Palma de Mallorca 1985. Letters and notes on the North American Indians,Gramercy Books, New York 1995. Drawings of the North American Indians,
Doubleday, Garden City, N.Y. 1984. The George Catlin book of American
Indians, Watson-Guptill, New York 1977.

Edmonson, Munroe.-The Book of Counsel: The Popol Vuh of the
Quiche Maya of Guatemala, Middle American Research Institute 35, 1971.
The Ancient Future of the Itzá: The Chilam Balam of Tizimin,
Austin 1982.